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Improved traffic light management can help administrator to control vehicle flow and mitigate congestion, thus reducing transit time and associated carbon emissions. In addition to the basic function of a traffic light - Display Unit, with green, red and orange LEDs, it may incorporate a Detector Unit, with sensors for detecting vehicles or pedestrian and a Controller Unit - smart traffic light can be equipped with cameras to detect infringements to traffic code and registration plate recognition as well as connectivity to enable centralized control.

We have a broad range of wired and wireless connectivity – including sub-GHz, power management and supply and LED driving solutions, together with a range of high-performance and low-power STM32 microcontrollers, presence, proximity, camera and environmental sensors, as well as MEMS microphones to enable the design of advanced traffic lights systems.

Part Number	Description
STEVAL-ISA152V1	3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987	Quick view Key Features 3.3 V output voltage 3 A DC output current 4.5 V to 60 V input voltage 500 kHz switching frequency 3.5 ms programmed soft-start VBIAS switch-over for improved efficiency at light load 180° out of phase synchronization available Open drain PGOOD available Auto recovery overcurrent and thermal protection RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA158V1	38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986	Quick view Key Features 4 V to 38 V operating input voltage Low consumption mode or low noise mode 30 µA I_Q at light load (LCM V_OUT = 3.3 V) 5 µA I_Q-SHTDWN Adjustable f_SW (250 kHz - 2 MHz) Output voltage adjustable from 0.85 V to V_IN Embedded output voltage supervisor Synchronization Adjustable soft-start time Internal current limiting Overvoltage protection Output voltage sequencing Peak current mode architecture R_DS(on)HS = 180 mΩ; R_DS(on)LS = 150 mΩ Thermal shutdown RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA099V1	3 A step-down switching demonstration board based on the L7986 in DFN10 package	Quick view Key Features 3 A DC output current From 4.5 V to 38 V range input voltage Output voltage adjustable from 0.6 V 250 kHz switching frequency programmable up to 1 MHz Internal soft-start and enable Low dropout operation: 100% duty cycle Voltage feed-forward Zero load current operation Overcurrent and thermal protection RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA095V1	Up to 3 A step-down switching regulator based on the ST1S14	Quick view Key Features 3 A DC output current Operating input voltage from 5.5 V to 48 V 850 kHz internally fixed switching frequency Internal soft-start Internal current limiting Inhibit for zero current consumption 2 mA maximum quiescent current over-temperature range Thermal shutdown RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ILL054V2	4 A HB LED driver with dimming function based on the LED2001 in an HSOP8 package	Quick view Key Features 3.0 V to 18 V operating input voltage range 850 kHz fixed switching frequency 100 mV typical current sense voltage drop PWM dimming ±7% output current accuracy Synchronous rectification Internal current limiting Thermal shutdown RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ILL063V1	3 A LED driver based on the LED5000 in floating boost topology	Quick view Key Features 5.5 V to 48 V operating input voltage range 850 kHz fixed switching frequency 200 mV typ. current sense voltage drop Floating boost topology PWM dimming ±3% output current accuracy over temperature 200 mOhm typical R_DSON Peak current mode architecture Short-circuit protection Compliant with ceramic output capacitors Inhibit for zero current consumption Thermal shutdown RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
ST25DV-DISCOVERY	Discovery kit for ST25DV04 Dynamic NFC/RFID tag IC with fast transfer mode capability	Quick view Key Features Two ready-to-use printed circuit boards (PCB): ST25DV_Discovery_Mboard: STM32F405VGT6 LQFP100 32-bit microcontroller, with 1 Mbyte Flash memory, 192 + 4 Kbytes SRAM. LCD color screen (320 x 200 pixels) Touch screen driver Different color LEDs (power, user, ST link) User push button Joystick for menu selection Reset button On board ST link for microcontroller firmware upgrade and debug ST link mini USB User micro USB USB micro or mini connector for board powering Demonstration use cases stored in memory Demonstration edition (optional add-on module) with Bluetooth Low Energy module, Wi-Fi^® module and JTAG 20 pin connector ST25DV_Discovery_ANT_C5: 40 mm x 24 mm, 13.56 MHz inductive antenna etched on the PCB ST25DV04K Dynamic NFC / RFID tag I² C interface connector Energy harvesting output (VOUT) with a 10 nF capacitance filtering circuit GPO configurable as RF WIP/BUSY output, to indicate that an RF operation is ongoing Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
X-NUCLEO-NFC04A1	Dynamic NFC/RFID tag IC expansion board based on ST25DV04K for STM32 Nucleo	Quick view Key Features Expansion board based on the ST25DV04K dynamic NFC/RFID tag for STM32 Nucleo Up to 4-Kbit memory with NDEF support 54 mm diameter, single layer circular antenna Compatible with STM32 Nucleo boards Equipped with Arduino™ UNO R3 connector Self-powered or powered through the Arduino™ UNO R3 connectors Three general purpose LEDs Scalable solution, capable of cascading multiple boards for larger systems Free comprehensive development firmware library and example for ST25DV04K, compatible with STM32Cube firmware FCC and IC verified RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
X-NUCLEO-LED61A1	DC-DC LED driver expansion board based on LED6001 for STM32 Nucleo	Quick view Key Features Single channel LED Driver, 350 mA constant current PWM and analog brightness control with the STM32 Nucleo board Selectable boost or SEPIC converter topology Up to 92% efficiency (boost converter) Open LED, feedback disconnection, LED overcurrent and output-to-ground short-circuit (SEPIC only) fault detection and management Onboard photo-transistor for ambient light switch function (analog dimming) Wide DC input voltage range: 8 V – 24 V Compatible with Arduino™ UNO R3 connectors Compatible with STM32 Nucleo boards RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber

Part Number

STEVAL-ISA152V1

3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987

Quick view

Key Features

3.3 V output voltage
3 A DC output current
4.5 V to 60 V input voltage
500 kHz switching frequency
3.5 ms programmed soft-start
VBIAS switch-over for improved efficiency at light load
180° out of phase synchronization available
Open drain PGOOD available
Auto recovery overcurrent and thermal protection
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA158V1

38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986

Quick view

Key Features

4 V to 38 V operating input voltage
Low consumption mode or low noise mode
30 µA I_Q at light load (LCM V_OUT = 3.3 V)
5 µA I_Q-SHTDWN
Adjustable f_SW (250 kHz - 2 MHz)
Output voltage adjustable from 0.85 V to V_IN
Embedded output voltage supervisor
Synchronization
Adjustable soft-start time
Internal current limiting
Overvoltage protection
Output voltage sequencing
Peak current mode architecture
R_DS(on)HS = 180 mΩ; R_DS(on)LS = 150 mΩ
Thermal shutdown
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA099V1

3 A step-down switching demonstration board based on the L7986 in DFN10 package

Quick view

Key Features

3 A DC output current
From 4.5 V to 38 V range input voltage
Output voltage adjustable from 0.6 V
250 kHz switching frequency programmable up to 1 MHz
Internal soft-start and enable
Low dropout operation: 100% duty cycle
Voltage feed-forward
Zero load current operation
Overcurrent and thermal protection
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA095V1

Up to 3 A step-down switching regulator based on the ST1S14

Quick view

Key Features

3 A DC output current
Operating input voltage from 5.5 V to 48 V
850 kHz internally fixed switching frequency
Internal soft-start
Internal current limiting
Inhibit for zero current consumption
2 mA maximum quiescent current over-temperature range
Thermal shutdown
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ILL054V2

4 A HB LED driver with dimming function based on the LED2001 in an HSOP8 package

Quick view

Key Features

3.0 V to 18 V operating input voltage range
850 kHz fixed switching frequency
100 mV typical current sense voltage drop
PWM dimming
±7% output current accuracy
Synchronous rectification
Internal current limiting
Thermal shutdown
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ILL063V1

3 A LED driver based on the LED5000 in floating boost topology

Quick view

Key Features

5.5 V to 48 V operating input voltage range
850 kHz fixed switching frequency
200 mV typ. current sense voltage drop
Floating boost topology
PWM dimming
±3% output current accuracy over temperature
200 mOhm typical R_DSON
Peak current mode architecture
Short-circuit protection
Compliant with ceramic output capacitors
Inhibit for zero current consumption
Thermal shutdown
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

ST25DV-DISCOVERY

Discovery kit for ST25DV04 Dynamic NFC/RFID tag IC with fast transfer mode capability

Quick view

Key Features

Two ready-to-use printed circuit boards (PCB):
- ST25DV_Discovery_Mboard:
- STM32F405VGT6 LQFP100 32-bit microcontroller, with 1 Mbyte Flash memory, 192 + 4 Kbytes SRAM.
- LCD color screen (320 x 200 pixels)
- Touch screen driver
- Different color LEDs (power, user, ST link)
- User push button
- Joystick for menu selection
- Reset button
- On board ST link for microcontroller firmware upgrade and debug
- ST link mini USB
- User micro USB
- USB micro or mini connector for board powering
- Demonstration use cases stored in memory
- Demonstration edition (optional add-on module) with Bluetooth Low Energy module, Wi-Fi^® module and JTAG 20 pin connector
ST25DV_Discovery_ANT_C5:
- 40 mm x 24 mm, 13.56 MHz inductive antenna etched on the PCB
- ST25DV04K Dynamic NFC / RFID tag
- I² C interface connector
- Energy harvesting output (VOUT) with a 10 nF capacitance filtering circuit
- GPO configurable as RF WIP/BUSY output, to indicate that an RF operation is ongoing

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

X-NUCLEO-NFC04A1

Dynamic NFC/RFID tag IC expansion board based on ST25DV04K for STM32 Nucleo

Quick view

Key Features

Expansion board based on the ST25DV04K dynamic NFC/RFID tag for STM32 Nucleo
Up to 4-Kbit memory with NDEF support
54 mm diameter, single layer circular antenna
Compatible with STM32 Nucleo boards
Equipped with Arduino™ UNO R3 connector
Self-powered or powered through the Arduino™ UNO R3 connectors
Three general purpose LEDs
Scalable solution, capable of cascading multiple boards for larger systems
Free comprehensive development firmware library and example for ST25DV04K, compatible with STM32Cube firmware
FCC and IC verified
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

X-NUCLEO-LED61A1

DC-DC LED driver expansion board based on LED6001 for STM32 Nucleo

Quick view

Key Features

Single channel LED Driver, 350 mA constant current
PWM and analog brightness control with the STM32 Nucleo board
Selectable boost or SEPIC converter topology
Up to 92% efficiency (boost converter)
Open LED, feedback disconnection, LED overcurrent and output-to-ground short-circuit (SEPIC only) fault detection and management
Onboard photo-transistor for ambient light switch function (analog dimming)
Wide DC input voltage range: 8 V – 24 V
Compatible with Arduino™ UNO R3 connectors
Compatible with STM32 Nucleo boards
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

00 Files selected for download

Technical Documentation

Application Notes

Description	Version	Size	Action
AN5085 Cycling endurance and data retention of EEPROMs in ST25DVxxx products based on CMOS F8H process	2.0	306.83 KB	PDF
AN4910 Data exchange between wired (I²C) and wireless (RF ISO 15693) using fast transfer mode supported by ST25DVxxx	1.0	585.2 KB	PDF
AN4913 Energy harvesting delivery impact on ST25DVxxx behavior during RF communication	1.0	1.05 MB	PDF
AN2866 How to design a 13.56 MHz customized antenna for ST25 NFC / RFID Tags	3.0	615.85 KB	PDF
AN2972 How to design an antenna for dynamic NFC tags	9.0	1.59 MB	PDF
AN934 How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products	4.1	123.42 KB	PDF
AN1216 Implementing a periodic alarm with TIMEKEEPER® and serial real-time clocks (RTCs)	2.0	192.89 KB	PDF
AN923 Managing century information using serial real-time clocks and TIMEKEEPER® NVRAMs	4.0	142.23 KB	PDF
AN4911 NDEF management with ST25DVxxx and ST25TVxxx products	4.0	460.67 KB	PDF
AN576 PCB layout optimisation	3.0	109.53 KB	PDF
AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages	4.0	4.82 MB	PDF
AN1019 Second source for SNAPHAT® using a dual footprint	2.1	66.19 KB	PDF
AN316 Transil™ clamping protection mode	4.3	432.1 KB	PDF

AN5085

Cycling endurance and data retention of EEPROMs in ST25DVxxx products based on CMOS F8H process

Part number	Description
VG6640	1.3 megapixel high dynamic range image sensor
VL53L0X	World smallest Time-of-Flight (ToF) ranging sensor
VL53L1X	Long distance ranging Time-of-Flight sensor based on ST FlightSense technology

Part number	Description
L6399	High voltage high and low-side driver
L6491	High voltage high and low-side 4 A gate driver
L6985F	38 V 500 mA synchronous step-down switching regulator with 30 uA quiescent current
L6986	38 V 2 A synchronous step-down switching regulator with 30 uA quiescent current
L6986F	38 V 1.5 A synchronous step-down switching regulator with 30 uA quiescent current
L7985	2A step-down switching regulator
L7986	3A step-down switching regulator
L7987	61 V 3 A asynchronous step-down switching regulator with adjustable current limitation
L7987L	61 V 2 A asynchronous step-down switching regulator with adjustable current limitation
LDF	1A Very low drop voltage regulator IC
LDFM	500 mA very low drop voltage regulator
LED5000	3 A monolithic step-down current source with dimming capability
LED6000	3 A, 61 V monolithic current source with dimming capability
LED6001	PWM-dimmable single channel LED driver with integrated boost controller
STEF01	8 V to 48 V fully programmable universal electronic fuse
STEF12	Electronic fuse for 12 V line
VIPER06	VIPerPlus family: Energy saving high voltage converter for direct feedback
VIPER16	VIPerPlus family: Energy saving 6W high voltage converter with direct feedback
VIPER37	VIPerPlus family: Fixed frequency 15W high performance off line high voltage converter

Part number	Description
STL11N3LLH6	N-channel 30 V, 6 mOhm typ., 11 A STripFET H6 Power MOSFET in a PowerFLAT(TM) 3.3 x 3.3 package
STL20N6F7	N-channel 60 V, 0.0046 Ohm typ., 20 A STripFET F7 Power MOSFET in a PowerFLAT 3.3x3.3 package
STL36DN6F7	Dual N-channel 60 V, 0.023 Ohm typ., 36 A STripFET F7 Power MOSFET in a PowerFLAT 5x6 double island package

Part number	Description
ESDA25P35-1U1M	High-power transient voltage suppressor (TVS)
ESDA7P120-1U1M	High-power transient voltage supressor (TVS)
SMAJ	400 W TVS in SMA

Part number	Description
S2-LP	Ultra-low power, high performance, sub-1GHz transceiver
SPIRIT1	Low data rate, low power Sub 1GHz transceiver
SPSGRF	Sub-GHz (868 or 915 MHz) low power programmable RF transceiver modules
STS1TX	Low data rate, low power sub-1GHz transmitter

Description	Version	Size	Action
600-650 V MDmesh™ M2: The ST’s new Super-junction HV MOSFET series	1.0	755.53 KB	PDF
DC-DC converters		557.92 KB	PDF
L6984, L6986 Energy saving synchronous DC-DC converters for industrial		1.24 MB	PDF
Power Delivery Protection - Simply cancel ESD and EOS events	1.0	1.2 MB	PDF
ST Protection Finder - The new app for Android and iOS	1.0	1.52 MB	PDF
ST25DV-I2C series - Dynamic NFC/RFID tags	1.0	1.47 MB	PDF
Ultra-low clamping voltage 0201 ESD diodes	1.0	1.32 MB	PDF

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